| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Animals, Nature, and Albert Schweitzer | 978-0-9617225-1-7 (0-9617225-1-7) | 1988 |
| Forever the Wild Mare | 978-0-9617225-2-4 (0-9617225-2-5) | 1963 |
| No Room Save in the Heart: Poetry and Prose on Reverence for Life-Animals, Nature and Human Kind | 978-0-9617225-0-0 (0-9617225-0-9) | 1986 |